#define _CRT_SECURE_NO_WARNINGS 1

# include<bits/stdc++.h>
using namespace std;

int N = 1e9;

int main()
{
	long long sum = 0;
	for (int i = 0; i < N; ++i)
	{
		sum += i;
		//cout << i << endl;
	}
	sum += 1;	
	cout << "sum = " << sum << endl;
	cout << "haha" << endl;
	cout << "sum = " << sum << endl;
	cout << "haha" << endl;
	cout << "hehe" << endl;
	cout << "hehe" << endl;
	return 0;
}